Home / 7,840.16-11,760.09-3,160.06

Finding the Fourth Proportional to 7,840.16, 11,760.09 and 3,160.06

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Solution

The fourth proportional to 7,840.16, 11,760.09 and 3,160.06 is: 4,740.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,840.16 : 11,760.09 = 3,160.06 : x
  2. Step 2: Convert to fraction form
    7,840.16/11,760.09 = 3,160.06/x
  3. Step 3: Cross multiply
    7,840.16x = 11,760.09 × 3,160.06
  4. Step 4: Simplify right side
    7,840.16x = 37,162,624.90
  5. Step 5: Solve for x
    x = 37,162,624.90/7,840.16
  6. Step 6: Final answer
    x = 4,740.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.